CN107414259B - Auxiliary silk filling GMA increasing material manufacturing device and method for functionally gradient material (FGM) manufacture - Google Patents
Auxiliary silk filling GMA increasing material manufacturing device and method for functionally gradient material (FGM) manufacture Download PDFInfo
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- CN107414259B CN107414259B CN201710855161.2A CN201710855161A CN107414259B CN 107414259 B CN107414259 B CN 107414259B CN 201710855161 A CN201710855161 A CN 201710855161A CN 107414259 B CN107414259 B CN 107414259B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
Abstract
The invention discloses a kind of auxiliary silk filling GMA increasing material manufacturing device and methods for functionally gradient material (FGM) manufacture.Described device includes GMAW Arc Welding Power and wire-feed motor, GMAW welding gun, two wire guiding nipples and two auxiliary silk filling wire-feed motors, in which: wire-feed motor is used for handling molten pole welding wire, and wire feed hose is connect with GMAW welding gun；GMAW welding gun is vertically set on right above molten bath, and for guiding consumable electrode welding wire to be sent into molten bath, generated electric arc is between consumable electrode welding wire and molten bath；Two auxiliary silk filling wire-feed motors are respectively used to conveying and homogeneity filler wire and heterogeneous filler wire, and wire feed hose is connect with two wire guiding nipples respectively；Two wire guiding nipples are fixed on GMAW welding gun front end, for guiding homogeneity filler wire and heterogeneous filler wire to be sent into molten bath.The present invention solves the problems, such as during traditional GMA increasing material manufacturing that drip molding heat accumulation is serious and cannot achieve ingredient and continuously adjusts.
Description
Technical field
The invention belongs to efficient electric arc increases material manufacturing technology fields, are related to a kind of GMA increasing material manufacturing device and method, specifically
It is related to a kind of auxiliary silk filling GMA increasing material manufacturing device and method for functionally gradient material (FGM) manufacture.
Background technique
Consumable electrode gas-arc electric arc (Gas metal arc, GMA) increasing material manufacturing is a kind of metal material increasing material manufacturing work
Skill, for the technique using welding arc as heat source, metal welding wire is packing material, is successively shaped by road deposition, low with equipment cost,
The advantages that deposition efficiency is high, stock utilization is high, Forming Workpiece excellent in mechanical performance.
However, there are irrationalities in Energy distribution for traditional GMA increasing material manufacturing technique.Deposition electric current is being heated and is being melted
While changing welding wire, excessive heat input is also produced to drip molding.During successively by road deposition, drip molding experienced more
Reheating, heat accumulation are serious.If continuing deposition on this basis, it is be easy to cause bath superheat, influences to shape, or even is caused molten
Pond metal slime flux.Meanwhile bath superheat can also make deposition road organizational coarseness, drip molding penalty.
Moreover, traditional GMA increasing material manufacturing technique also receives the limitation of rapidoprint type, can only be by between road
The method of welding wire is replaced to change deposition road ingredient, and this adjustment mode is not only cumbersome, but also receives welding wire type
Limitation, deposition road ingredient can not continuously adjust, it is difficult to realize the deposition preparation of functionally gradient material (FGM).
Therefore, there is an urgent need to propose a kind of efficient GMA increasing material manufacturing technique, make its more energy for melt filling
Metal reduces the heat input to drip molding, while can be realized continuously adjusting for deposition road ingredient.
Summary of the invention
In order to solve the heat of the drip molding caused by the irrationality of energy distribution during traditional GMA increasing material manufacturing
It is limited to accumulate serious problem and rapidoprint type, deposition road ingredient can only be changed by replacement welding wire, cannot achieve
The problem of ingredient continuously adjusts, the present invention provides a kind of auxiliary silk filling GMA increasing material manufacturing devices for functionally gradient material (FGM) manufacture
And method.The present invention not only can be used for electric arc increasing material manufacturing, but also can be used for the electric arc increasing material manufacturing of functionally gradient material (FGM).
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of auxiliary silk filling GMA increasing material manufacturing device for functionally gradient material (FGM) manufacture, including GMAW Arc Welding Power and wire feed
Machine, GMAW welding gun, two wire guiding nipples and two auxiliary silk filling wire-feed motors, in which:
The wire-feed motor is used for handling molten pole welding wire, and wire feed hose is connect with GMAW welding gun；
The GMAW welding gun is vertically set on right above molten bath, produced for guiding consumable electrode welding wire to be sent into molten bath
Electric arc between consumable electrode welding wire and molten bath；
Two auxiliary silk filling wire-feed motor is respectively used to conveying homogeneity filling weldering identical with consumable electrode component of weld wire
Silk and the heterogeneous filler wire different with consumable electrode component of weld wire, wire feed hose are connect with two wire guiding nipples respectively；
Two wire guiding nipples are fixed on GMAW welding gun front end, for guiding homogeneity filler wire and heterogeneous filler wire
It is sent into molten bath.
A kind of auxiliary silk filling GMA increasing material manufacturing method realized using above-mentioned apparatus for functionally gradient material (FGM) manufacture, including with
Lower step:
Step 1: deposition standard parameter is arranged according to the result of path planning, parametric programming；
Step 2: when GMAW welding gun reaches arcing point, starting the arc order is sent to GMAW Arc Welding Power, in consumable electrode welding wire
The starting the arc between substrate (or molded part of drip molding) forms molten bath, starts deposition；Two are connected after 0.2~0.5 second
The wire feed switch of auxiliary silk filling wire-feed motor, persistently fills silk into molten bath；
Step 3: when GMAW welding gun reaches blow-out point, the wire feed switch of two auxiliary silk filling wire-feed motors is disconnected, stops filling out
Silk；The deposition processing in a deposition road is completed in the blow-out after blow-out point stops 0.2~0.5 second of GMAW welding gun；
Step 4: executing above-mentioned steps two and three repeatedly, the deposition processing until completing entire drip molding.
The present invention has the advantage that
1, apparatus structure is simple, at low cost, and process is stablized, and is easy to control, and can make full use of welding delayed heat melting filling
Welding wire improves the capacity usage ratio of GMA increasing material manufacturing, make more energy for melt filling metal.
2, under the premise of the unit time, deposited metal amount was constant, the introducing to fill silk is assisted to make the wire feed speed of consumable electrode welding wire
Degree is corresponding to be reduced, i.e. deposition current reduction, therefore is significantly reduced to the heat input of drip molding, is improved existing GMA and is increased material system
The problems such as heat accumulation caused during making by multi source heating is serious.Meanwhile molten bath is fused by each welding wire, adjustment
The wire feed rate ratio of various welding wires can be realized deposition road ingredient and continuously adjust in a certain range, therefore be suitable for gradient material
The increasing material manufacturing of material.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the present invention for the GMA increasing material manufacturing device that assists filling silk of functionally gradient material (FGM) manufacture.
Specific embodiment
The present invention provides a kind of auxiliary silk filling GMA increasing material manufacturing devices for functionally gradient material (FGM) manufacture, as shown in Figure 1,
The device includes GMAW Arc Welding Power 1, wire-feed motor 2, consumable electrode welding wire 3, GMAW welding gun 4, the first wire guiding nipple 5, the second wire guiding nipple
6, the first auxiliary silk filling wire-feed motor 7 and the second auxiliary silk filling wire-feed motor 8, in which:
The wire-feed motor 2 is used for handling molten pole welding wire 3, and wire feed hose is connect with GMAW welding gun 4；
The GMAW welding gun 4 is vertically set on right above molten bath 11, for guiding consumable electrode welding wire to be sent into molten bath 11, institute
The electric arc of generation is between consumable electrode welding wire 3 and molten bath 11；
The first auxiliary silk filling wire-feed motor 7 is used to convey homogeneity filler wire 9 identical with consumable electrode component of weld wire,
Its wire feed hose is connect with the first wire guiding nipple 5；
Second auxiliary fills silk wire-feed motor 8 for conveying the heterogeneous filler wire different with consumable electrode component of weld wire
10, wire feed hose is connect with the second wire guiding nipple 6；
First wire guiding nipple 5 and the second wire guiding nipple 6 is fixed on 4 front end of GMAW welding gun, for guiding homogeneity filling weldering
Silk 9 and heterogeneous filler wire 10 are sent into molten bath 11.
The auxiliary silk filling GMA increasing material manufacturing method for functionally gradient material (FGM) manufacture, including following step are realized using above-mentioned apparatus
It is rapid:
Step 1: deposition standard parameter, including deposition electric current, deposition are arranged according to the result of path planning, parametric programming
The wire feed rate etc. that voltage, deposition rate and each auxiliary fill silk.
Step 2: when GMAW welding gun 4 reaches arcing point, starting the arc order is sent to GMAW Arc Welding Power 1, is welded in consumable electrode
The starting the arc between silk and substrate (or molded part of drip molding) forms molten bath 11, starts deposition；It is auxiliary that first is connected after 0.5 second
The wire feed switch for helping fill silk wire-feed motor 7 and the second auxiliary silk filling wire-feed motor 8, persistently fills silk into molten bath 11.
Step 3: it when GMAW welding gun 4 reaches blow-out point, disconnects the first auxiliary silk filling wire-feed motor 7 and the second auxiliary fills silk
The wire feed of wire-feed motor 8 switchs, and stops filling silk；The blow-out after blow-out point stops 0.5 second of GMAW welding gun 4, completes a deposition road
Deposition processing.
Step 4: executing above-mentioned steps two and three repeatedly, the deposition processing until completing entire drip molding.
In the present invention, auxiliary filler wire (that is: homogeneity filler wire and heterogeneous filler wire) is sent into molten bath, absorbs electricity
Arc and the waste heat in molten bath and melt, therefore more energy be used to melt filling metal, reduce the heat input to drip molding, energy
Amount utilization rate significantly improves, and matches with the demand of increasing material manufacturing.Meanwhile silk filling GMA increasing material manufacturing method being assisted to break biography
System GMA increasing material manufacturing can only increase the limitation of unit time deposited metal amount by improving deposition electric current, can be compared with eutectic
It applies under electric current and generates higher unit time deposited metal amount, therefore this method is a kind of increasing material manufacturing side GMA of low_input_power
Method can be obviously improved the problems such as heat accumulation caused during GMA increasing material manufacturing deposition by multi source heating is serious.
In the present invention, molten bath is fused by consumable electrode welding wire, homogeneity filler wire and heterogeneous filler wire, deposition road
Relationship between ingredient and each welding wire feeding speed is to derive to obtain in the following manner:
During auxiliary fills silk GMA increasing material manufacturing deposition, ignore the influence factors such as splashing, according to material balance relationship,
The volume in deposition road is equal with the fusing volume of welding wire, and the volume for melting welding wire is equal with the volume of welding wire is sent into, consumable electrode weldering
The volume that the unit time of silk, homogeneity filler wire and heterogeneous filler wire is sent intoMeet:
In formula: d1、d2、d3--- consumable electrode welding wire, homogeneity filler wire, heterogeneous filler wire diameter；vf1、vf2、
vf3--- consumable electrode welding wire, homogeneity filler wire, heterogeneous filler wire wire feed rate.
The wire feed rate of three root wires is mutually indepedent, can be molten to adjust by adjusting the wire feed rate ratio of three root wires
Apply the ingredient in road.Therefore, it is formed by deposition road by above-mentioned wire melting, volume fraction ω shared by heterogeneous filler wire3
Are as follows:
In the present invention, the adjusting rule of each welding wire feeding speed is as follows: for the deposition road of same layer, should ensure that
Unanimously, guarantee simultaneouslyUnanimously, on this basis, the wire feed rate of filler wire is assisted to realize by adjusting two
The adjusting of deposition road ingredient.At this point, volume, the heat input in each deposition road are almost the same, forming dimension will not be because of composition adjustment
And it substantially change, it can be ensured that overlay surfacing, deposition process are carried out continuously according to program results.
Illustrate embodiments of the present invention below by way of specific embodiment.The present invention can also pass through other different realities
The mode of applying is embodied or practiced, without departing from the spirit of the present invention the various details in this specification can also carry out respectively
Kind modifications and changes.
In the present embodiment, the auxiliary silk filling GMA increasing material manufacturing device for functionally gradient material (FGM) manufacture is fixed on
Motoman HP20D robot end, GMAW Arc Welding Power use Tangshan Panasonic YD500FR power supply, consumable electrode welding wire and homogeneity
Filler wire is the H08Mn2Si welding wire of diameter 1.2mm, and heterogeneous filler wire is the H18CrMo welding wire of diameter 1.2mm, protection
Gas ingredient is 95%Ar+5%CO2.The drip molding that the present embodiment is accumulated is formed by overlapping by 5 parallel deposition roads, Ge Gerong
Applying road length is 120mm, and from left to right deposition is accumulated, and the deposition standard parameter in each deposition road is as shown in table 1:
Table 1
Specific step is as follows:
Step 1: writing robot deposition processing program according to the result of path planning, parametric programming, and deposition rule are arranged
Model parameter；
Step 2: robot deposition processing program is executed.When GMAW welding gun reaches arcing point, robot is to GMAW arc-welding
Power supply sends starting the arc order, and the starting the arc between consumable electrode welding wire and substrate forms molten bath, starts deposition；Two are connected after 0.5 second
The wire feed switch of platform auxiliary silk filling wire-feed motor, persistently fills silk into molten bath；
Step 3: when GMAW welding gun reaches blow-out point, the wire feed switch of two auxiliary silk filling wire-feed motors is disconnected, stops filling out
Silk；The deposition processing in a deposition road is completed in the blow-out after blow-out point stops 0.5 second of GMAW welding gun；
Step 4: executing above-mentioned steps two and three repeatedly, the deposition processing until completing entire drip molding.
The ingredient of the drip molding of the present embodiment institute's deposition processing is along deposition direction normal direction distribution gradient, in deposition process
In, arc stability burning, sufficiently, deposition process is capable of the progress of continuous-stable to the fusing of auxiliary filler wire, gained deposition road at
Shape is good, of uniform size.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, all those of ordinary skill in the art are completed without departing from the spirit and technical ideas disclosed in the present invention
All equivalent modifications or change, should be covered by the claims of the present invention.
Claims (2)
- The GMA increasing material manufacturing device 1. a kind of auxiliary for functionally gradient material (FGM) manufacture fills silk, it is characterised in that described device includes GMAW Arc Welding Power and wire-feed motor, GMAW welding gun, two wire guiding nipples and two auxiliary silk filling wire-feed motors, in which:The wire-feed motor is used for handling molten pole welding wire, and wire feed hose is connect with GMAW welding gun；The GMAW welding gun is vertically set on right above molten bath, for guiding consumable electrode welding wire to be sent into molten bath, generated electricity Arc is between consumable electrode welding wire and molten bath；Two auxiliary fill silk wire-feed motor be respectively used to conveying homogeneity filler wire identical with consumable electrode component of weld wire and The heterogeneous filler wire different with consumable electrode component of weld wire, wire feed hose are connect with two wire guiding nipples respectively；Two wire guiding nipples are fixed on GMAW welding gun front end, for guiding homogeneity filler wire and heterogeneous filler wire to be sent into Molten bath.
- 2. a kind of auxiliary silk filling increasing material manufacturing side GMA realized using device described in claim 1 for functionally gradient material (FGM) manufacture Method, it is characterised in that the method comprises the following steps:Step 1: deposition standard parameter is arranged according to the result of path planning, parametric programming；Step 2: when GMAW welding gun reaches arcing point, starting the arc order is sent to GMAW Arc Welding Power, in consumable electrode welding wire and base The starting the arc between plate or the molded part of drip molding forms molten bath, starts deposition；Two auxiliary are connected after 0.2~0.5 second to fill silk The wire feed of wire-feed motor switchs, and persistently fills silk into molten bath, the consumable electrode welding wire, homogeneity filler wire and heterogeneous filler wire Unit time be sent into volumeMeet following condition:In formula: d1、d2、d3--- consumable electrode welding wire, homogeneity filler wire, heterogeneous filler wire diameter；vf1、vf2、vf3—— Consumable electrode welding wire, homogeneity filler wire, heterogeneous filler wire wire feed rate；The adjusting rule of the consumable electrode welding wire, homogeneity filler wire and heterogeneous filler wire wire feed rate is as follows: for same The deposition road of layer, should ensure thatUnanimously, guarantee simultaneouslyUnanimously, on this basis, by adjusting homogeneity filler wire The adjusting of deposition road ingredient is realized with the wire feed rate of heterogeneous filler wire；Step 3: when GMAW welding gun reaches blow-out point, the wire feed switch of two auxiliary silk filling wire-feed motors is disconnected, stops filling silk； The blow-out after blow-out point stops 0.2~0.5 second of GMAW welding gun, the deposition for completing a deposition road is processed, different in the deposition road Volume fraction ω shared by matter filler wire3Are as follows:Step 4: executing above-mentioned steps two and three repeatedly, the deposition processing until completing entire drip molding.
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